Paper
27 October 2003 Response of paraboloidal surfaces to linear thermal gradients
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Abstract
This paper presents a theoretical (closed-form) solution for the z-axis surface deformations of a linear, homogeneous, unconstrained and isotropic paraboloidal surface subjected to a 3-dimensional linear thermal temperature gradient and soak temperature change. Previously, an equation for the component of the nodal surface displacement in the z direction has been published. Attaching the z-axis component of the nodal surface displacement to the original surface does not accurately describe the final surface. This work extends the previous analysis and presents a polynomial equation for the corrected surface deformation along the z-axis, as well as, the coefficients for the standard Zernike polynomial describing the corrected surface deformation. Also included is a discussion about z-axis temperature gradients across the paraboloidal surface and how to calculate an equivalent soak temperature change.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Rex M. Kremer "Response of paraboloidal surfaces to linear thermal gradients", Proc. SPIE 5176, Optomechanics 2003, (27 October 2003); https://doi.org/10.1117/12.510370
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CITATIONS
Cited by 5 scholarly publications.
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KEYWORDS
Temperature metrology

Mirrors

Thermography

Zernike polynomials

Heat flux

Inspection

Mirror pointing

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